Philip Zimbardo, a professor emeritus at Stanford University and past president of the American Psychological Association, designed and narrated the award-winning PBS series Discovering Psychology. He has written more than fifty books, including the New York Times bestseller The Lucifer Effect, and lives in San Francisco.

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Jay Zigmont, PhD, MBA, CFP®, is the founder and CEO of Childfree Wealth®, a life and financial planning firm dedicated to helping childfree and permanently childless people. He and his wife are childfree.

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Pat Zigarmi is a Senior Consulting Partner for The Ken Blanchard Companies, a captivating motivational speaker, a highly regarded management consultant and trainer, a best-selling author, and an experienced businesswoman.

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Mimi Zieman, MD writes about medical topics to empower people with information and writes creatively to explore the meaning behind experiences we share. In addition to Tap Dancing on Everest, she has written a play, The Post-Roe Monologues, and is a coauthor of the medical guide, Managing Contraception.

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Joe Zieja is an author with a long history of doing things that have almost nothing to do with writing at all. A graduate of the United States Air Force Academy, he dedicated over a decade of his life to wearing The Uniform. He is also a commercial voice-over artist and a composer of music for video games and commercials.

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Lenora M. Ziegler, LCSW, is a licensed clinical social worker in private practice in Manalapan, New Jersey, where she specializes in working with teenagers, college students, and the adults who care for them. She is certified in anxiety treatment and dialectical behavior therapy (DBT).

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Mary Ziegler is the Martin Luther King Jr. Professor of Law at the University of California, Davis, and author of six books on the law, history, and politics of abortion and American conservatism. She lives in Sausalito, California.

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Mano Ziegler (1908–1991) was a pilot in the Luftwaffe during World War II. From 1943 until the war's end he flew the Me 163 with Erprobungskommando 16 (Operational Test Unit 16) and Jagdgeschwader 400 (Fighter Group 400). After the war, he eventually became editor-in-chief of the Flug-Revue aviation monthly in Stuttgart.

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Maddie Ziegler is an actor, model, and New York Times bestselling author. She is best known for her work with Sia, including the iconic music video "Chandelier." She has also made appearances on television shows such as Pretty Little Liars, Austin & Ally, and as the youngest judge on Fox's So You Think You Can Dance.

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Robert H. Zieger (1938–2013) was Distinguished Professor of History Emeritus at the University of Florida, where he had taught since 1986. Zieger wrote or edited more than a dozen books, including The CIO, 1935–1955 and For Jobs and Freedom: Race and Labor in America since 1865.

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Jane Ziegelman is the founder and director of Kids Cook!, a multiethnic cooking program for children. She is the author of 97 Orchard: An Edible History of Five Immigrant Families in One New York Tenement.

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Helen Zia is the author of Asian American Dreams: The Emergence of an American People, a finalist for the Kiriyama Pacific Rim Book Prize. Zia is the co-author, with Wen Ho Lee, of My Country Versus Me: The First-Hand Account by the Los Alamos Scientist Who Was Falsely Accused of Being a Spy.

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